The Nagasawa was converted into a CargoShip and was renamed the Talismantia at roughly the same time as Clan Diamond Shark became Clan Sea Fox again. The Talismantia was the command ship of the Beta Aimag fleet within the Spina Khanate.

In June 3134, the Beta Aimag command ship meet in a secret meeting at a pirate point in the Vindemiatrix star system, with envoys from Clan Jade Falcon.[5]
The ship then proceeded to the Remulac system where she meet the Jumpship, Farstar III, reports sighting of Delta Aimag's in the Adhafera system were in deep in negotiations.[6]

In July she arrived at Adhafera ,where her crew attempted to counter-offer the Delta's negotiations. However, acts of aggression supposedly caused by a terrorist cell caused Beta's ovKhan to declare the world hostile and off limits.

The ship then traveled to Stewart in September, where her personnel went to start trade negotiations with the government there. However, ovKhan's command DropShip and its crew were suddenly in the middle of an invasion by the Marik-Stewart Commonwealth. The ovKhan, suspecting his secret dealings had been revealed, decided to remain on the planet and wait for Clan Sea Fox forces to retrieve him and his loyalists.

Other than its exploits during ovKhan Clarke's insurrection, there is no information on the Talismantia aside which has been published in Field Manual: 3145. By 3145, command of the Talismantia and Beta Aimag fleet was given to ovKhan Matthew Horn.[7]

* It was confirmed via a question in the "Ask The Writers" forum of the official Catalyst Game Labs forum that the Nagasawa had been renamed the Talismantia:

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The Diamond Shark fleet (what survived from the Jihad) was turned into ArcShips or traded to the Snow Ravens for vessels to turn into ArcShips.